Seasonal Survival of Adult Female Mottled Ducks

The mottled duck (Anas fulgivula) is a non‐migratory duck dependent on coastal habitats to meet all of its life cycle requirements in the Western Gulf Coast (WGC) of Texas and Louisiana, USA. This population of mottled ducks has experienced a moderate decline during the past 2 decades. Adult survival has been identified as an important factor influencing population demography. Previous work based on band‐recovery data has provided only annual estimates of survival. We assessed seasonal patterns of female mottled duck survival from 2009 to 2012 using individuals marked with satellite platform transmitter terminals (PTTs). We used temperature and movement sensors within each PTT to indicate potential mortality events. We estimated cumulative weekly survival and ranked factors influential in patterns of mortality using known‐fate modeling in Program MARK. Models included 4 predictors: week; hunting and non‐hunting periods; biological periods defined as breeding, brooding, molt, and pairing; and mass at time of capture. Models containing hunt periods, during and outside the mottled duck season, comprised essentially 100% of model weights where both legal and illegal harvest had a negative influence on mottled duck survival. Survival rates were low during 2009–2011 (12–38% annual rate of survival), when compared with the long‐term banding average of 53% annual survival. During 2011, survival of female mottled ducks was the lowest annual rate (12%) ever documented and coincided with extreme drought. Management actions maximizing the availability of wetlands and associated upland habitats during hunting seasons and drought conditions may increase adult female mottled duck survival. © 2017 The Authors. Journal of Wildlife Management Published by Wiley Periodicals, Inc. on behalf of The Wildlife Society

Lisp Machine Choice Facilities

This document is a draft copy of a portion of the Lisp Machine window system manual. It is being published in this form now to make it available, since the complete window system manual is unlikely to be finished in the near future. The information in this document is accurate as of system 70, but is not guaranteed to remain 100% accurate. To understand some portions of this document may depend on background information which is not contained in any published documentation. The window system contains several facilities to allow the user to make choices. These all work by displaying some arrangement of choices in a window; by pointing to one with the mouse the user can select it. This document explains what the various facilities are, how to use them, and how to customize them for your own purposes.MIT Artificial Intelligence Laborator

The Impacts of Animal Disease Crises on the Korean Meat Market

Employing the error correction method and historical decomposition with direct acyclic graphs, we quantify the impacts of domestic and oversea animal disease crises on the Korean meat markets. We find that (a) the market partially recovered 16 months after the foot-and-mouth outbreak in 2000, and 13 months after the avian influenza and the U.S. BSE incidents in 2003; (b) animal disease outbreaks have differentiate impacts by disease type and supply chain level. Retailers likely to have windfall profits as the retail price margin increased relative to the farm and wholesale levels; and (c) disease outbreaks affect dynamic price interdependence.Animal disease outbreak, Error correction model, Direct acyclic graphs, Korean meat market, Historical Decomposition, Price margins, Livestock Production/Industries, C32, Q11, L11,

Introduction to Using the Window System

This document is a draft copy of a portion of the Lisp Machine window system manual. It is being published in this form now to make it available, since the complete window system manual is unlikely to be finished in the near future. The information in this document is accurate as of system 67, but is not guaranteed to remain 100% accurate. To understand some portions of this document may depend on background information which is not contained in any published documentation. This paper is a portion of a document which will explain how a programmer may make use of and extend the facilities in the Lisp machine known collectively as the Window System.MIT Artificial Intelligence Laborator

Distribution of contaminants in the environment and wildlife habitat use: a case study with lead and waterfowl on the Upper Texas Coast

The magnitude and distribution of lead contamination remain unknown in wetland systems. Anthropogenic deposition of lead may be contributing to negative population-level effects in waterfowl and other organisms that depend on dynamic wetland habitats, particularly if they are unable to detect and differentiate levels of environmental contamination by lead. Detection of lead and behavioral response to elevated lead levels by waterfowl is poorly understood, but necessary to characterize the risk of lead-contaminated habitats. We measured the relationship between lead contamination of wetland soils and habitat use by mottled ducks (Anas fulvigula) on the Upper Texas Coast, USA. Mottled ducks have historically experienced disproportionate negative effects from lead exposure, and exhibit a unique nonmigratory life history that increases risk of exposure when inhabiting contaminated areas. We used spatial interpolation to estimate lead in wetland soils of the Texas Chenier Plain National Wildlife Refuge Complex. Soil lead levels varied across the refuge complex (0.01–1085.51 ppm), but greater lead concentrations frequently corresponded to areas with high densities of transmittered mottled ducks. We used soil lead concentration data and MaxENT species distribution models to quantify relationships among various habitat factors and locations of mottled ducks. Use of habitats with greater lead concentration increased during years of a major disturbance. Because mottled ducks use habitats with high concentrations of lead during periods of stress, have greater risk of exposure following major disturbance to the coastal marsh system, and no innate mechanism for avoiding the threat of lead exposure, we suggest the potential presence of an ecological trap of quality habitat that warrants further quantification at a population scale for mottled ducks

Operating the Lisp Machine

This document is a draft copy of a portion of the Lisp Machine window system manual. It is being published in this form now to make it available, since the complete window system manual is unlikely to be finished in the near future. The information in this document is accurate as of system 67, but is not guaranteed to remain 100% accurate. This document explains how to use the Lisp Machine from a non-programmer's point of view. It explains the general characteristics of the user interface, particularly the window system and the program-control commands. This document is intended to tell you everything you need to know to sit down at a Lisp machine and run programs, but does not deal with the writing of programs. Many arcane commands and user-interface features are also documented herein, although the beginning user can safely ignore them.MIT Artificial Intelligence Laborator

Time of Flight Secondary Ion Mass Spectrometric Determination of Molecular Weight Distributions of Low Polydispersity Poly(Dimethyl Siloxane) with Polyatomic Primary Ions

This work reports a comparison of oligomer and fragment ion intensities resulting from primary ion bombardment with several primary ion sources (Bin+, C60+, and Cs+) at various energies in secondary ion mass spectrometry (SIMS). Although the use of polyatomic primary ions are of great interest due to increased secondary ion efficiency and yield, we demonstrate that monatomic primary ions result in increased oligomer ion yield for polymers prepared as submonolayer films on silver substrates. The enhancement of oligomer secondary ion yield with monatomic ions is evidence that monatomic primary ions have a shallower sampling depth than polyatomic ions, resulting from a collision cascade that is less energetic at the sample surface. The results are also consistent with a lower degree of fragmentation of the resultant secondary ions, which is observed when evaluating the fragmentation data and the spectral data

Three very young HgMn stars in the Orion OB1 Association

We report the detection of three mercury-manganese stars in the Orion OB1 association. HD 37886 and BD-0 984 are in the approximately 1.7 million year old Orion OB1b. HD 37492 is in the approximately 4.6 million year old Orion OB1c. Orion OB1b is now the youngest cluster with known HgMn star members. This places an observational upper limit on the time scale needed to produce the chemical peculiarities seen in mercury-manganese stars, which should help in the search for the cause or causes of the peculiar abundances in HgMn and other chemically peculiar upper main sequence stars.Comment: 8 pages including 1 figure. To appear in Astrophysical Journal Letter

An Emerging University-School-Community Partnership: A Story in Two Acts

This paper shares narratives regarding an institutional effort to build a sustainable partnership with schools and communities. Loyola University Chicago has developed and strengthened partnerships with eight community schools in Chicago Public Schools (CPS) District over the past decades to promote equity and social justice in the urban context. The sustainability of partnerships is an ongoing issue in university-assisted community schools. Guided by poststructuralist versions of narrative research, the five authors write and share memories about their engagement in university partnerships with communities and schools. This paper explores the “how” of partnerships rather than reiterating strategies of “what works” in partnerships. The authors articulate the complexity of community partnerships and crucial elements to consider for advancing partnerships. As examples, the authors explore the creation of a field-based teacher education program (Teaching, Learning, and Leading with Schools and Communities; TLLSC) as well as a community-centered, justice-oriented graduate program (Curriculum, Culture, and Communities; 3Cs). These degree programs focus on educating students as research practitioners in the ongoing sustainable support and collaboration among schools, universities, and communities. An asset-based frame is employed across narratives in developing and implementing degree programs and offering core courses. The subjectivities of each author enrich the conversations on ongoing efforts to build sustainable, trust-based partnerships. Drawing from our narratives, the authors hope PK-20 educators, university leaders, and community leaders collaboratively and critically reflect on their practices in partnership and utilize some of our narratives and themes as starting points of an ongoing conversation. Overall, this paper contributes to extending the approach to community partnership and equity-oriented education, highlighting the value of university-community partnerships for local schools and institutional efforts

Sonography of Fat Necrosis Involving the Extremity and Torso With Magnetic Resonance Imaging and Histologic Correlation

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/135699/1/jum200827121751.pd